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Finding the Fourth Proportional to 319,645.40, 441,119.58 and 176,416.52

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Solution

The fourth proportional to 319,645.40, 441,119.58 and 176,416.52 is: 243,459.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,645.40 : 441,119.58 = 176,416.52 : x
  2. Step 2: Convert to fraction form
    319,645.40/441,119.58 = 176,416.52/x
  3. Step 3: Cross multiply
    319,645.40x = 441,119.58 × 176,416.52
  4. Step 4: Simplify right side
    319,645.40x = 77,820,781,207.46
  5. Step 5: Solve for x
    x = 77,820,781,207.46/319,645.40
  6. Step 6: Final answer
    x = 243,459.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.